Ramjet bypass duct and preburner configuration

Details Ramjet bypass duct and preburner configuration Ramjet bypass duct and preburner configuration

1993-05-10

1994-05-17

Casaregola, Louis J.

Power plants

Reaction motor

Method of operation

60225, 60244, 60263, F02K 311

Patent

active

053117352

ABSTRACT:
A combined turbofan and ramjet aircraft engine includes a forward bypass duct which allows the engine to operate more efficiently during the turbofan mode of operation. By mounting a ramjet preburner in the forward duct and isolating this duct from the turbofan bypass air, a transition from turbofan operation to ramjet operation can take place at lower flight Mach numbers without incurring pressure losses or blockage in the turbofan bypass air.

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patent: 5012638 (1991-05-01), Grieb et al.

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